Apparatus for making tobacco-pouches



F. F. JAMIESON.

APPARATUS FOR MAKING TOBACCO POUCHES.

APPLICATION HL ED JAN-9 I919.

Patented Sept. 21, 1.920.

2 SHEETS-SHEET I.

F. F. JAMIESON.

APPARATUS FOR MAKING TOBACCO POUCHES.

APPLICATION FILED lAN.9, 1919.

1 ,353,477 PatentedSept. 21,1920.

2 SHEETS-SHEET 2.

' A? "Alll l n lli v AENELQEM'EA 33M, atto'awmz UNITED l STATES PATENT OFFICE."

FRANK FRASER JAMIESON, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO ME- CHANICAL RUBBER COMPANY, A CORPORATION OF NEW JERSEY.

APPARATUS FOR MAKING TOBACCO-POUCHES.

I Specification of Letters'latent.

Application filed January 9, 1919. Serial No. 270,299.

To all whom it may concern:

Be it known that I, FRANK FRASER J AMIE- SON, a subject of the King of Great Britain, a resident of Montreal, in the Province of Quebec and Dominion of Canada, have invented certain new and useful Improvements in Apparatus for Making Tobacco- Pouches, of which the following is a full, clear, and exact description.

This invention relates more particularly to the making of that type of tobacco pouches in which one section of the pouch is of less area than the second section and is adapted to be folded within the latter to close the pouch. Heretofore pouches of this type have been made from sheet rubber by hand. That is to say, the sections of the pouch have been cut out from sheets of rubber, the edges covered with cement and the cemented edges pressed into contact by the operator, the operator also applying certain reinforcing strips to the sections at points receiving the greatest strain. Such operations requlre a high-grade rubber stock to permit satisfactory cementing at the joints, and production is slow and costly.

The object of my invention is to provide means by which the pouch may be made rapidly and of cheaper stock than that required in the hand made pouches, and yet of equal or greater strength and superior appearance, a further object being to avoid the use of the applied reinforcing strips above mentioned.

My apparatus will be understood from the accompanying drawings in which:

Figure 1 is a plan 'view of a lower mold member and the core, the pouch beingv shown in section.

Fig. 2 is a cross-sectional view on the line 22, Fig. 1 with the upper mold member in position.

Fig. 3 is a cross-sectional view on the line 3-3, Fig. 1, also with the upper mold member 1n position.

Fig. 4 is a perspective partly broken away, of the completed pouch.

The apparatus consists of a mold, comprising the lower mold member A the upper mold member B and the core C. l lach mold member is provided with an extensive face in a single plane and is formed with a cavity havin one section of larger area than the secon section; and the cavity sections of the lower mold member are separated by a trans faces will be spaced equidistant from the inner Walls of the mold when the latter is assembled, and also to provide aspacing member in the formation of the two pocket flaps d, 6, (Fig.

Patented Sept. 21', 1920."

4 The core (i consists of a plate having the general contour of the mold cavity. I have provided the bridge piece 1 with projecting dowel plus 2 which act as centering members for the core, the lower mold member, for thls purpose, being formed with the apertures 3 to receive the said dowel pins.

Any suitable means maybe provided for centering the one mold member with respect to the second member, as for example, dowel pins 4 on the member A which are received within the apertures 5 in the member B (Fig. 2).

The apparatus above described is utilized in the following manner:

A piece of unvulcanized rubber stock of the required contour is placed in the cavity of mold member-B; and two pieces of stock suitably shaped are placed in the cavity of mold member A, and onopposite sides of the seat or bridge piece 1. The core is then placed in position over the dowel pins 2 and the mold members are assembled and locked together. The mold is then subjected to heat in the vulcanizing press. The softening of the rubber by the heat will cause the pieces of stock to interflow into a unitary structure, part of the stock passing into channels 6 in the core on that side thereof facing the mold section B, to form reinforcements 6 at the edges of the pouch in the line L.

what I claim and desire to protect by Letters Patent is: t I

l. A mold for making pouches, comprlsing two separable mold members and an intel-mediate .core member, there being a seating surface between the core member and one of the mold members for forming the opening in the pouch and forminga support for the core member, guiding means on said last mentioned mem ers for guiding them in their movement toward each other to prevent displacement of the rubber when seating the core, and, other means for centerin one mold member with relation to the other mold member.

2. A mold for'making pouches, comprising two separable mold members and an intermediate core member, there bein a seating surface between the core'mem er and one of the mold members forming a support for the core; member, a plurality of dowel pins connected to one of said last mentioned members and arranged to extend into openings in the other 'of said last mentioned members for guiding them in their move-. ment toward each other to prevent displacement of the rubber when seating the core, and dowel pins for centering one mold member with. relation to the other mold member.

3. A mold for making pouches, comprising two separable mold members and an intermediate core member, there bein a seating surface between the core mem er and one of the mold members for forming the opening in the pouch and forming a support for the core member, guiding means on said last mentioned "members for guiding them in their movement toward each other to revent displacement of the rubber when p acing the core member inthe mold member, other means for centerin one mold member with relation to the ot er mold member, there bein a threaded opening in the first mold mem er, and an ejecting screw in said opening for engaging the seating surface of the core member to eject the same from the mold.

4. A mold for making pouches, comprising. two separable mold members and an intermediate core member, there beingJa seating surface between the core mem er and one of the mold members forming a support for the core member, a plurality of dowel pins connected to one of said last' mentioned members and arranged to extend into openings in the other of said last mentioned members for guiding them in their movement toward each other to prevent displacement of the rubber when placing the core member in the mold member, dowel pins for centering one mold member with relation to the other mold member, there bein a threaded opening in the first mold mem r, and an ejecting screw in said opening for engaging the seating surface of the core member to e'ect the same from the mold.

Signed at of December 1918.

FRANK FRASER J AMIESON ontreal, Canada, this 20th day- 

